The java.io.FileFilter interface can be used to filter an array of files obtained when looking inside a directory.
An example implementation of FileFilter
class JarFileFilter implements FileFilter
{
public boolean accept(File file)
{
if(file.getName().toLowerCase().endsWith("jar"))
{
return true;
}
return false;
}
}
The above implementation class narrows down the list of files to only jar files.
This filter can be used when looking into a directory using java.io.File.
example snippet:
String myDirectoryLoc = "c:\myjars";
File myFolder = new File(myDirectoryLoc);
if(myFolder.isDirectory())
{
File[] myjars = myFolder.listFiles(new JarFileFilter);
if(myjars != null)
{
for (File f : myjars )
{
System.out.println("file: " + f.getName());
}
}
}
On successful execution you will get only the jar files in the specified folder.
Hope this is useful.
Cheers
Vinay
